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This genuine Volkswagen rocker arm is the correct original-spec replacement for pre-1988 VW Type 25 / T3 buses fitted with 1900cc Waterboxer engines or 1600cc aircooled CT engines. Manufactured by Volkswagen to OE standards, this rocker arm ensures correct valve train geometry, smooth operation, and long-term reliability.
The rocker arm is a critical valvetrain component that transfers motion from the pushrod to the valve stem, converting camshaft movement into precise valve opening and closing. On Waterboxer and CT engines, correct rocker arm specification is essential to maintain proper valve timing, minimise wear, and ensure quiet operation—particularly on engines using hydraulic cam followers.
This version is designed for 9mm valve adjusting screws, as used on the specified early T25/T3 engines. Being a genuine VW part, it offers the correct metallurgy, heat treatment, and contact surface finish, reducing the risk of premature wear to valve tips, pushrods, or rocker shafts often associated with inferior aftermarket alternatives.
Ideal for engine rebuilds, cylinder head work, or replacing worn or damaged rocker arms to restore factory-correct performance.
Quantity: Sold each – 8 required per engine
Adjusting screw: 025109451 (sold separately)
Adjusting nut: N0111531 (sold separately)
Designed specifically for 9mm adjuster screws
Always inspect rocker shafts and spacers during installation
Suitable for engines with the following codes:
CT – 1600cc Aircooled
DG, SP, EY, DF, DH, GW – 1900cc Waterboxer
Rocker Arm – Genuine VW
VW Type 25 / T3 Bus: 1983 – 1988
Also fitted to:
Late Mexican Beetle
Brazil Kombi
This Part Fits: Type 25
Availability: Special Order Item
Unit of Measure: Each
Manufacturer: ORIGINAL
Dimensions:
Width: 0mm
Height: 0mm
Depth: 0mm
Volume: 0mm3
Weight: 0kg